Heel-seat-trimming machine.



c. H. PARTRIDGE.

HEEL SEAT TRIMMING MACHINE.

APPLICATION FILED 111112.18, 1910.

988,501 Patented Apr. 4, 1911.

Mme:-

w. n fim innlnsnnrr'"imnrnriaonsz, or Lone'BUoKBr', ENGLAND, Assienonro GIMsoN a.

S Arnsr-ATENT oFFIcE.

j ,ooiurnnv (nn cns'rna) LIMITED, or LEICESTER, ENGLAND.

Specification of Letters Patent. Application filed March 18, 1910. Serial'li'o. 550,191.

HEEL-SEAT-TRIMMING MACHINE.

Patented Apr. 4, 1911.

.To all whom may concern: Be it known that I, CHARLES HERBERT I @Pen'rnioen, a subject of the King of Great Brita n, residing at Lon Buckby, in the county of Northampton,

ngland, have invented new and useful Improvementsin or Relatin to Heel-Seat-Trimming Machines,

of whic the following is a speclfication.

This invention-relates to machines to be employed in the manufacture of boots and shoes for; trimming heel-seats.

The invention comprehends a simple and cheap machine which will trim the heelseats of boots and shoes more expeditiously than heretofore, an important feature 'of the improved machine according to this invention, being that a heel-seat of graduated width may be produced so that the trimmed .edge is taken closer in at the back of the heel; than at the sides.

- 1 ffl'lhe machine comprises a vertically'recip- 1 trimming machines, the work is presented to' rocat-i ng knife combined with which is a work support upon which the heel-seat to be trimmed is rested.

- In contradistinction to previous heel-seat themachine of the present invention with the heel-seat facing upward 2'. e. the upper of the boot or shoe is turned downward and the projecting'face or edge of the heel-seat rests upon the work support. The reciproeating knifeis located above the work supv port and cuts downward into the heel-seat to trim off the edge thereof as the boot or shoe is'moved around by the operator.

The principal feature of the invention is the combination with the reciprocating knife of a work support having a curved and inclined front face or edge against which the upper of theboot is pressed when trimming the heel seat. The curved front face of the work support allows the back of the heel to I. approach nearer to the knife as the work is moved around so that the heel-seat is graduated in width.

In further describing the invention refer- :ence will be made to 'the accompanying drawing, wherein 3- I Figure 1 is a side elevation of a heel-seat trimming machine constructed according to thisinvention. Fig. 2 is a front view of the machine. Figs. 3 and 4 are plan views of the work support and show a heel-seat being trimmed at the side and back respectively,

Like parts are designated by the same reference characters in all the figures.

The machine comprises a frame or stand 1 carrying at the front a vertically movable slide 2 adapted to reciprocate in a suitable guide 3'.- Themeans for impartingreciprm cation to the slide 2 consist of a horizontal fro in the grooved block 8. The vertically reciprocating slide 2 carries at its lower end the knife or cutter 9 and for this purpose is.

furnished with a block 'or'h'older 10 having screw 11 by means of which the knife 9 may be clamped and firmlyheld in the said block but may be detached therefrom when required. The block or' holder 10' may be permanently attached to the slide 2 or it maybe detachably fastened therein or thereto in any suitable manner.- The knife 9 is preferably in the form of a tapered or wedge like blade and depends from its holder block 10 as shown in Fig. 1. Combined with the reciprocating knife or cutter just described is a work support 12 which consists of a rest or block located under the lower cutting edge of the knife and ad ust ably mounted between two cheeks 13 on the frame 1. The block 12 has a .curved e.

concaved front face 14 asshown in Figs. 3 and 4 and said face 14, in orden that it may enter the feather of the boot or shoe, is also inclined or formed at an angle'with the top of the work support as shown in Fi 1. The object of this curved formation o -the face 14 is to enable the heel-seat to be trimmed so that its width will be varied in the manner previously mentioned and the knife 9 is specially formed as hereinafter described so thatat. the same time the edge of said seat will receive the requisite amount of angle or incline. The knife or cutter 9 descends at each reciprocation until its cutting edge touches the surface of the work supporting block 12.

In presenting the work to the machine,

the heel-seat 15, facing upward as shown by the dotted lines in Fig. 1, is rested upon the work support 12 and the side 16 of the boot or shoe is pressed up to the curved and in-' clined front 14 of the said block 12. -The work is moved around by the operator so as to carry the heel-seat 15 along under the knife 9 which reciprocates rapidly and trims oil the surplus edge .17 of the material as shown in Figs. 3 andl. \Vhen the approximately flat side 16 of'the boot or shoe is held up to the concaved front 14 of the work support 12, the edge of the upper z. e. the

side of the boot, will bridge across the concavity and stand away from the knife or cutter 9 as shown in Fig. 3, but as the work is moved along and the rounded back portion 18 of the boot or shoe passes in front of the work support, the side of the boot will gradually 1nove ,close1"to the knife 9 seeing that the rounded back portion 18 will enter theconcavity as shown in Fig. .1 This produces a heel-seat which when trimmed has a face whose width varies, that is to say,

the trimmed edge 19 of the heel-seat will be closer in to the upper of theboot or shoe at the back of the heel than it will be at the sides of the heel as shownin Fig. 4. The front face 20 of the knife or cutter 9 is'beveled or inclined (Fig. 1) so that when it passes through the heel-seat it will impart thereto an angular or inclinededge such as shown at 15 in Fig. 1. In order to vary the distance between the front edge 14 of the work support and the knife 9 to produce any required width of heel-seat, said work supporting block 12 is slidable'between the cheeks 13 and may be adjusted by means of a rod 21 screwed at one end into said-block and adapted to be rotated by a handwheel 22 (Fig. 1). After adjustment the block 12 may befastened by means of a set screw 28. i n I For receiving the cut of the knife, tlitip of the work support is preferably furnished with a brass plate or cap 2 1 which, for purposes of renewal, may be dovetailed into the block 12 so as to be slidable in and out thereof. The block 12 may be split and furnished with a screw12 so that theplate 24may be clamped in place in'the block. The work supporting block 12 may also be interchangeable with others having conaved frontsof different curvature and depths to suit various kinds of work. i

A guard 26 is preferably provided and is ustably attached to the framel by means of a screw =26: This guard 26 is located at the front of the machine and protects the operators fingers from injury by the knife. Additionally the lower end or edge or said guard may serve to prevent the work lifting from the work support with the upward movement of .the knife.

The adjustment ofthe knife or cutter 9 to take upwear may be effected by lowering 'the knife in the clamping device or knife holder 10 previously described. l/Vhat I claim then is v j p A machine for trimming the heel seats of boots and shoes, having in combination a relativelyto the face of the work support 12 knife,.a beveled front face on said knife to V produce an inclined heel seat edge, a holder to adjustably support said knife, a vertically reciprocating slide to carry said holder, a

rotating crank to actuate said slide, a block to support the heel seat under said reciprocating knifepan inclined and concaved guide I face on said block to'produce a heel-seat face of graduated width, a rotatable screwed rod to slidably adjust the position of the supporting blade under the knife trans-.

versely. to the direction of'the feed to vary the width of the heel-seat face, a set screw to secure the block in its adjusted position, and a stationary guard adjustable in height relatively to the block adapted to prevent the heel-seat rising from the block during the upward travel of the knife, all substantially as herein set forth.

In testimony whereof I have signed my name toithis specification in the presence of two subscribing witnesses.

CHARLES HERBERT PARTRIDGE.

lVit-nesses:

R. 'W. C. TAYLOR,

Gnouen Lnsrnn. 

